RPC
For users new to RPC, this section will provide a broad overview of what it is, and of the different components involved in the process. If you’re already familiar with how RPC works, feel free to skip this section.
Speaking generically, RPC is a toolkit designed for distributed computing. It provides a framework for executing procedures on one system from another, completely independent system in a secure, reliable, and efficient manner.
The best way to understand the RPC programming model is perhaps by compar-ing it to the “regular” programming model, in which procedures, or functions, are invoked on the same system or within the same program. Figure 6.1 and Figure 6.2 illustrate the difference.
Figure 6.1. A local function call.
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